Brontosaurus was a large, long-necked quadrupedal animal with a long, whip-like tail, and forelimbs that were slightly shorter than their hindlimbs.rontosaurus may have been a more solitary animal than other Morrison Formation dinosaurs. As a genus, Brontosaurus existed for a long span of time, and have been found in most levels of the Morrison.
A gene is a basic unit of heredity in a living organism that normally resides in long strands of DNA called chromosomes. Genes are coded instructions that decide what the organism is like, how it behaves in its environment and how it survives.
Chromosomes, DNA and genes. The nucleus of a cell contains chromosomes that carry genetic information. Most body cells have the same number of chromosomes, but this varies between species. Human body cells, for example, each have 23 matching pairs of chromosomes. Chromosomes are made from long, coiled molecules of DNA. A gene is a shorter region of DNA that carries the genetic code for a particular characteristic or cell activity. DNA molecules contain chemicals called bases. Note that these are not the bases you come across in chemistry - which neutralise acids.